ALL ANSWERS · DINOSAURS · DAILY No. 51 · OCTOBER 24, 2026
Size It Up Dinosaurs answer: October 24
The five Dinosaurs silhouettes for October 24, with the true sizes. If you have not played yet, this page is a spoiler — play these five first, then come back to argue with the numbers.
Day 51 ran from a lesothosaurus (1 m) to a melanorosaurus (12 m). The widest gap was round 3, Lesothosaurus against Yutyrannus, at 7.5×; the closest call was round 2, Leptoceratops against Maiasaura, only 3.0× apart — the kind of round that separates a 90 from a 60.
SPOILER · TODAY’S FIVE
You have not finished today’s puzzle on this device. The answers below are blurred so you can still play first.
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ROUND 1
Avimimus Avimimus portentosus vs Alioramus Alioramus remotus
Alioramus · reference · 6 m Avimimus · true length · 1.5 m 4.0× shorter than the alioramus
Avimimus is represented here by a selected estimated total length of 1.5 m. This is the museum directory estimate used for this comparison; individual animals and reconstructions vary.
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ROUND 2
Leptoceratops Leptoceratops gracilis vs Maiasaura Maiasaura peeblesorum
Maiasaura · reference · 9 m Leptoceratops · true length · 3 m 3.0× shorter than the maiasaura
Leptoceratops is represented here by a selected estimated total length of 3 m. This is the museum directory estimate used for this comparison; individual animals and reconstructions vary.
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ROUND 3
Lesothosaurus Lesothosaurus diagnosticus vs Yutyrannus Yutyrannus huali
Yutyrannus · reference · 7.5 m Lesothosaurus · true length · 1 m 7.5× shorter than the yutyrannus
Lesothosaurus is represented here by a selected estimated total length of 1 m. This is the museum directory estimate used for this comparison; individual animals and reconstructions vary.
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ROUND 4
Melanorosaurus Melanorosaurus readi vs Dryosaurus Dryosaurus altus
Dryosaurus · reference · 4 m Melanorosaurus · true length · 12 m 3.0× longer than the dryosaurus
Melanorosaurus is represented here by a selected estimated total length of 12 m. This is the museum directory estimate used for this comparison; individual animals and reconstructions vary.
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ROUND 5
Ceratosaurus Ceratosaurus nasicornis vs Velociraptor Velociraptor mongoliensis
Velociraptor · reference · 1.8 m Ceratosaurus · true length · 7 m 3.9× longer than the velociraptor
Ceratosaurus is represented here by a selected estimated total length of 7 m. Dinosaur reconstructions vary; this is the source value used for this comparison.
Beat these tomorrow
Every round is worth up to 100 points: within 6% of the true size scores 100, half or double scores 45, five times off scores zero. The daily puzzle is the same five for everyone and refreshes at midnight in your time zone; if you want more than five, Size It Up Unlimited draws fresh pairs from the whole library for as long as you like.